CB Radio or PRS
#201
Guest
Posts: n/a
Re: CB Radio or PRS - Update
PL-238??? I think you mean PL-259....
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Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
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"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:407B3BCB.115C8D51@***.net...
> I think Mike was just alluding the Poster's ability to solder in a
> PL-238, rather the fraction of a wave length.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Howard Eisenhauer wrote:
> >
> > Mike, I don't mean to be an *** but I've gotta disagree with you on
> > the coax length thing :) That's a very common misconception but it
> > just ain't so, unless you're running a really non-standard antenna
> > the coax length doesn't make any major difference.
> >
> > In theory, shorter is better but for the difference in length thats
> > possible in a vehicle I don't think the ol' mk.1 "ear" test will
> > notice any difference.
> >
> > The only concern I'd have with shortening the coax run would be
> > getting the connector properly installed, may take a try or two for a
> > first timer but not out of the question.
> >
> > -Howard.
--
--
Jerry Bransford
To email, remove 'me' from my email address
N6TAY, PP-ASEL
See the Geezer Jeep at
http://members.***.net/jerrypb/
"L.W. (ßill) ------ III" <----------@***.net> wrote in message
news:407B3BCB.115C8D51@***.net...
> I think Mike was just alluding the Poster's ability to solder in a
> PL-238, rather the fraction of a wave length.
> God Bless America, ßill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Howard Eisenhauer wrote:
> >
> > Mike, I don't mean to be an *** but I've gotta disagree with you on
> > the coax length thing :) That's a very common misconception but it
> > just ain't so, unless you're running a really non-standard antenna
> > the coax length doesn't make any major difference.
> >
> > In theory, shorter is better but for the difference in length thats
> > possible in a vehicle I don't think the ol' mk.1 "ear" test will
> > notice any difference.
> >
> > The only concern I'd have with shortening the coax run would be
> > getting the connector properly installed, may take a try or two for a
> > first timer but not out of the question.
> >
> > -Howard.
#202
Guest
Posts: n/a
Re: CB Radio or PRS - Update
Yes.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jerry Bransford wrote:
>
> PL-238??? I think you mean PL-259....
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jerry Bransford wrote:
>
> PL-238??? I think you mean PL-259....
#203
Guest
Posts: n/a
Re: CB Radio or PRS - Update
Yes.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jerry Bransford wrote:
>
> PL-238??? I think you mean PL-259....
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jerry Bransford wrote:
>
> PL-238??? I think you mean PL-259....
#204
Guest
Posts: n/a
Re: CB Radio or PRS - Update
Yes.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jerry Bransford wrote:
>
> PL-238??? I think you mean PL-259....
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jerry Bransford wrote:
>
> PL-238??? I think you mean PL-259....
#205
Guest
Posts: n/a
Re: CB Radio or PRS - Update
Yes.
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jerry Bransford wrote:
>
> PL-238??? I think you mean PL-259....
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Jerry Bransford wrote:
>
> PL-238??? I think you mean PL-259....
#206
Guest
Posts: n/a
Re: CB Radio or PRS - Update
>
>twaldron wrote:
>>
>> Probably not, but how many antenna coax coils do you have in your
>> vehicles? It certainly doesn't take much effort to leave it uncoiled.
>L.W.(ßill) ------ III <----------@***.net> wrote:
> Strange things happen when we coil wire, like magnetizing a
>screwdriver for one.
> God Bless America, ßill O|||||||O
I'd think you'd need a *big* amp to push enough watts to magnetize a
screwdriver with the CB coax. Say, 4 or 500 watts maybe? Then you'd
probably start to melt the soft top every time you keyed up the mic.
I know for a fact that pushing 100 watts through a co-phased setup
will light a 4' fluorescent tube held between the antennas<g>.
--
Old Crow
'82 Shovelhead FLT 92" 'Pearl'
'95 Jeep YJ Rio Grande
ASE Certified Master Auto Tech + L1
TOMKAT, BS#133, SENS, MAMBM, DOF#51
#207
Guest
Posts: n/a
Re: CB Radio or PRS - Update
>
>twaldron wrote:
>>
>> Probably not, but how many antenna coax coils do you have in your
>> vehicles? It certainly doesn't take much effort to leave it uncoiled.
>L.W.(ßill) ------ III <----------@***.net> wrote:
> Strange things happen when we coil wire, like magnetizing a
>screwdriver for one.
> God Bless America, ßill O|||||||O
I'd think you'd need a *big* amp to push enough watts to magnetize a
screwdriver with the CB coax. Say, 4 or 500 watts maybe? Then you'd
probably start to melt the soft top every time you keyed up the mic.
I know for a fact that pushing 100 watts through a co-phased setup
will light a 4' fluorescent tube held between the antennas<g>.
--
Old Crow
'82 Shovelhead FLT 92" 'Pearl'
'95 Jeep YJ Rio Grande
ASE Certified Master Auto Tech + L1
TOMKAT, BS#133, SENS, MAMBM, DOF#51
#208
Guest
Posts: n/a
Re: CB Radio or PRS - Update
>
>twaldron wrote:
>>
>> Probably not, but how many antenna coax coils do you have in your
>> vehicles? It certainly doesn't take much effort to leave it uncoiled.
>L.W.(ßill) ------ III <----------@***.net> wrote:
> Strange things happen when we coil wire, like magnetizing a
>screwdriver for one.
> God Bless America, ßill O|||||||O
I'd think you'd need a *big* amp to push enough watts to magnetize a
screwdriver with the CB coax. Say, 4 or 500 watts maybe? Then you'd
probably start to melt the soft top every time you keyed up the mic.
I know for a fact that pushing 100 watts through a co-phased setup
will light a 4' fluorescent tube held between the antennas<g>.
--
Old Crow
'82 Shovelhead FLT 92" 'Pearl'
'95 Jeep YJ Rio Grande
ASE Certified Master Auto Tech + L1
TOMKAT, BS#133, SENS, MAMBM, DOF#51
#209
Guest
Posts: n/a
Re: CB Radio or PRS - Update
>
>twaldron wrote:
>>
>> Probably not, but how many antenna coax coils do you have in your
>> vehicles? It certainly doesn't take much effort to leave it uncoiled.
>L.W.(ßill) ------ III <----------@***.net> wrote:
> Strange things happen when we coil wire, like magnetizing a
>screwdriver for one.
> God Bless America, ßill O|||||||O
I'd think you'd need a *big* amp to push enough watts to magnetize a
screwdriver with the CB coax. Say, 4 or 500 watts maybe? Then you'd
probably start to melt the soft top every time you keyed up the mic.
I know for a fact that pushing 100 watts through a co-phased setup
will light a 4' fluorescent tube held between the antennas<g>.
--
Old Crow
'82 Shovelhead FLT 92" 'Pearl'
'95 Jeep YJ Rio Grande
ASE Certified Master Auto Tech + L1
TOMKAT, BS#133, SENS, MAMBM, DOF#51
#210
Guest
Posts: n/a
Re: CB Radio or PRS - Update
You are mistaken.
The coil can act as a pickup for noise and it can put out RF.
You should really read the TSB out on how to install a transmitter into
a new modern vehicle or you will void your vehicle warranty.
The antenna cable can and will interfere with the vehicle's onboard
electronics. It 'Will' cut out anti-lock brakes. It 'will' cut out a
Jeep automatic tranny module so every time you key up you go into
neutral. It also will interfere with the fuel injectors.
GM, Chrysler and all the rest have booklets out now on how to properly
wire a transmitter in order to avoid voiding the vehicle warranty.
GM insists on minimum 10 ga. power and ground run right to the battery
and double fused there on the opposite side of the vehicle from the
wiring harness. The antenna must run on the opposite side from the
harness too.
So for the power lines, to have a CB on the center or passenger side of
a GM van, the wires have to run up the passenger side fender to the
front of the vehicle, across the front of the radiator supports and back
to the battery. If you run them across the firewall, you void the
warranty for the vehicle's electronics, all of them.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Howard Eisenhauer wrote:
>
> TW, another old wive's tale about the coiled coax thing. If
> everything is working the way it should all the signal travels through
> the coax between the center conductor & the inside of the braid, not
> along the outside where coiling it would have any effect. Coiling it,
> tying it up or crocheting it for that matter will not make any
> differencet :). There are actually some situations where coiling it
> up would make a system work better, but you won't run into them in a
> jeep using a commercially available antenna.
>
> Howard.
>
> On Mon, 12 Apr 2004 14:40:20 GMT, twaldron
> <thomas@OBVIOUSrubicons.com> wrote:
>
> >The rule of thumb is to be 3 ft. from any other antennas. Shortening
> >your coax run in your TJ is not going to help your transmit range. Just
> >make sure you don't leave a coil of coax somewhere.
> >
> >TW wrote:
> >
> >> I went out and bought an AM CB radio (Uniden Pro 510XL). Now the weekend
> >> will be spent installing it.
> >>
> >> I was thinking how would it look if I could somehow install the CB antenna
> >> on the exact opposite side of the radio antenna (same height and spot). My
> >> radio antenna is on the right side of the TJ, CB antenna on the left side
> >> would ensure coax is shortest and the antenna would be somewhat in the
> >> middle of the truck (though to one side). Any ideas or photos of such an
> >> install?
> >>
> >> Thanks for all the help guys. Its much appreciated.
The coil can act as a pickup for noise and it can put out RF.
You should really read the TSB out on how to install a transmitter into
a new modern vehicle or you will void your vehicle warranty.
The antenna cable can and will interfere with the vehicle's onboard
electronics. It 'Will' cut out anti-lock brakes. It 'will' cut out a
Jeep automatic tranny module so every time you key up you go into
neutral. It also will interfere with the fuel injectors.
GM, Chrysler and all the rest have booklets out now on how to properly
wire a transmitter in order to avoid voiding the vehicle warranty.
GM insists on minimum 10 ga. power and ground run right to the battery
and double fused there on the opposite side of the vehicle from the
wiring harness. The antenna must run on the opposite side from the
harness too.
So for the power lines, to have a CB on the center or passenger side of
a GM van, the wires have to run up the passenger side fender to the
front of the vehicle, across the front of the radiator supports and back
to the battery. If you run them across the firewall, you void the
warranty for the vehicle's electronics, all of them.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Howard Eisenhauer wrote:
>
> TW, another old wive's tale about the coiled coax thing. If
> everything is working the way it should all the signal travels through
> the coax between the center conductor & the inside of the braid, not
> along the outside where coiling it would have any effect. Coiling it,
> tying it up or crocheting it for that matter will not make any
> differencet :). There are actually some situations where coiling it
> up would make a system work better, but you won't run into them in a
> jeep using a commercially available antenna.
>
> Howard.
>
> On Mon, 12 Apr 2004 14:40:20 GMT, twaldron
> <thomas@OBVIOUSrubicons.com> wrote:
>
> >The rule of thumb is to be 3 ft. from any other antennas. Shortening
> >your coax run in your TJ is not going to help your transmit range. Just
> >make sure you don't leave a coil of coax somewhere.
> >
> >TW wrote:
> >
> >> I went out and bought an AM CB radio (Uniden Pro 510XL). Now the weekend
> >> will be spent installing it.
> >>
> >> I was thinking how would it look if I could somehow install the CB antenna
> >> on the exact opposite side of the radio antenna (same height and spot). My
> >> radio antenna is on the right side of the TJ, CB antenna on the left side
> >> would ensure coax is shortest and the antenna would be somewhat in the
> >> middle of the truck (though to one side). Any ideas or photos of such an
> >> install?
> >>
> >> Thanks for all the help guys. Its much appreciated.